In this experiment, an experimental interview with the leader of the Socialists in the Dutch Parliament was delivered via three different media: television, radio, or a newspaper presentation. We showed that the experimental interviews led, in themselves, to attitude change, but no difference was found among the three communication modalities. Moreover, no significant interaction effect was established between the political preference of the subjects (Socialist versus non-Socialist) and communication modality. Our main results d o not support the assumption that for a well-known politician presently holding office, television is a less effective medium than radio or newspaper.This experiment is a continuation of two former studies (Wiegman, 1985;1987) in which two political leaders participated. In these studies, television interviews on a certain political topic were made with both politicians; video recordings of these interviews were subsequently shown and attitude change was measured. The content of the political topic was based on two main criteria. First, the issue must not relate directly to the personal experience of the recipient; and second, the issue should not have had extensive news coverage. We showed in both experiments that the experimental television interviews led, in themselves, to significant attitude change. In these experiments the effect of attraction of the source, discrepancy, intensity of delivery, and audience reactions were studied. In the present study, using a realistic experimental design, we explored whether political information distributed by various media-television, radio, or a newspaper presentation-would have different effects on the attitude of the recipients.Schramm ( 1977) reviewed hundreds of studies and concluded that people could learn something from the media, but it was not clear which medium was most effective. However, in only a few cases has attitude change been investi-'This article is part of an extensive study published in Meningen en Media by 0. Wiegman, A. de Roon, and T. Snijders (1981).